Transmission case body of rice huller

Abstract

The utility model relates to the technical field of rice hullers, and discloses a transmission case body of a rice huller, which comprises a case body wrapped outside a fixed belt, a swing belt, a first motor and a second motor, the upper end of the case body is provided with an extraction opening, and the outer wall of the upper end of the case body is provided with an extraction hood wrapped on the upper side of the extraction opening. A connecting sleeve is arranged at the upper end of the exhaust hood, a corrugated hose with one end connected with the connecting sleeve and the other end communicated with an extraction pipe of the rice huller is arranged on the upper side of the exhaust hood, an access door is arranged on the lower side of the box body, and a plurality of air inlet holes are formed in the access door. One end of the corrugated hose is connected with the connecting sleeve, and the other end of the corrugated hose is communicated with the extraction pipe of the rice huller, so that the corrugated hose can be communicated with the suction force in the extraction pipe, the air cooling in the box body is realized by virtue of the suction force in the extraction pipe, and the heat in the box body of the transmission box is well dissipated.

Description

Technical Field

[0001] The utility model belongs to the technical field of rice hullers, and particularly relates to a transmission box body of a rice huller. Background Art

[0002] A rice huller is a grain processing machine that removes the glumes of paddy rice to produce brown rice. It can remove the outer shell of paddy rice, reduce the breakage of rice grains and damage to the epidermis, and keep the brown rice as intact as possible.

[0003] At present, a Chinese patent with the publication number CN112774763 and the publication date of May 11, 2021 discloses a rice huller with a double-frequency motor, which includes a machine body, a feed hopper, a fixed rubber roll, a swinging rubber roll, a discharge port, an extraction pipe, and an air inlet. A first motor is arranged at the bottom of the machine body and below the fixed rubber roll. Fixed pulleys are arranged on one end of the fixed rubber roll and the output shaft of the first motor, and a fixed belt is connected between the two fixed pulleys. Driving cylinders are arranged at both ends of the swinging rubber roll on the machine body. Swing arms are arranged at both ends of the swinging rubber roll. The cylinder body of the driving cylinder is connected to the machine body, and the end of the piston rod is hinged to the end of the swing arm. A second motor is arranged at the bottom of the machine body and below the swinging rubber roll. Swing pulleys are arranged on one end of the swinging rubber roll and the output shaft of the second motor, and a swing belt is connected between the two swing pulleys.

[0004] The discharge port of the rice huller with the double-frequency motor is located below the machine body for the brown rice to fall, and at the same time, the extraction pipe is integrally arranged on the side of the machine body and is used to connect to a high-pressure air suction device to extract the rice husks.

[0005] Among them, the rice huller with the double-frequency motor drives the fixed rubber roll and the swinging rubber roll to rotate by using the fixed belt, the swing belt, the first motor and the second motor in the transmission box. Therefore, the temperature in the transmission box is relatively high, and the performance of the components is easily affected after long-term operation. Content of the Utility Model

[0006] The purpose of the utility model is to provide a transmission box body of a rice huller, which can dissipate heat from the inside of the transmission box body better.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a transmission box body of a rice huller, including a box body main body that wraps the fixed belt, the swing belt, the first motor and the second motor. An air extraction port is opened at the upper end of the box body main body. An air extraction cover that wraps the upper side of the air extraction port is arranged on the outer wall at the upper end of the box body main body. A connecting sleeve is arranged at the upper end of the air extraction cover. A corrugated hose with one end connected to the connecting sleeve and the other end connected to the extraction pipe of the rice huller is arranged above the air extraction cover. An inspection door is arranged at the lower side of the box body main body. A plurality of air inlet holes are opened on the inspection door.

[0008] A further setting of the utility model is that the air extraction hood is in the shape of a frustum of a cone with a smaller upper part and a larger lower part.

[0009] A further setting of the utility model is that a filter screen is arranged inside the connecting sleeve.

[0010] A further setting of the utility model is that a support ring for supporting the filter screen is arranged on the inner wall of the circumferential side of the connecting sleeve, and a pressing component for pressing the filter screen against the support ring is arranged on the connecting sleeve.

[0011] A further setting of the utility model is that the pressing component includes two long strip openings respectively formed on the outer walls of both sides of the connecting sleeve, connecting ears arranged on the outer wall of the connecting sleeve and located at the end positions of the long strip openings, and pressing arms with one end rotatably connected to the connecting ears and the other end for passing through the long strip openings and abutting against the upper surface of the filter screen.

[0012] A further setting of the utility model is that a fixing shaft extending in the vertically upward direction is arranged on the connecting ear, a shaft sleeve for the fixing shaft to pass through is arranged at one end of the pressing arm, and a rubber damping sleeve abutting against the outer wall of the fixing shaft is arranged on the inner wall of the circumferential side of the shaft sleeve.

[0013] A further setting of the utility model is that a handle rod is arranged on the outer wall of the pressing arm.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. When the rice huller extracts rice hulls through the extraction pipe, one end of the corrugated hose is connected to the connecting sleeve and the other end is communicated with the extraction pipe of the rice huller. At this time, the corrugated hose can connect the suction force in the extraction pipe. Subsequently, the suction force formed in the corrugated hose can extract the hot air flow in the box body through the air extraction hood and the air extraction port, and the box body utilizes the air inlet holes on the maintenance door to introduce external cold air. Finally, it can realize the air-cooling and cooling of the inside of the box body of the transmission box with the help of the suction force in the extraction pipe, so as to better dissipate heat from the inside of the box body of the transmission box;

[0016] 2. By using the air extraction hood in the shape of a frustum of a cone with a smaller upper part and a larger lower part, the hot air flow in the box body can be efficiently extracted through the air extraction hood at this time;

[0017] 3. By using the filter screen arranged inside the connecting sleeve, the filter screen can play a role in filtering the hot air flow extracted from the inside of the box body, preventing large particle debris from entering the extraction pipe;

[0018] 4. After the filter screen is placed inside the connecting sleeve, the filter screen can be supported on the support ring, and then the pressing component is used to press the filter screen against the support ring, which is beneficial to the stable installation of the filter screen inside the connecting sleeve;

[0019] 5. After rotating the pressing arm towards the inside of the connecting sleeve, the pressing arm can pass through the long slot and then abut against the upper surface of the filter screen, so as to press the filter screen against the support ring through the pressing arm; at the same time, rotate the pressing arm in the reverse direction, so that the pressing arm can be conveniently disassembled from the filter screen after disengaging from the filter screen;

[0020] 6. The connecting ear uses a fixed shaft to pass through the shaft sleeve at the end of the pressing arm, and the shaft sleeve is abutted against the outer wall of the fixed shaft by a rubber damping sleeve. At this time, a damping force can be formed through the rubber damping sleeve, so as to play a role in limiting the rotation of the pressing arm and prevent the pressing arm from automatically rotating and disengaging from the upper surface of the filter screen;

[0021] 7. The handle rod can be used to conveniently swing the pressing arm by the operator outside the connecting sleeve. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is the structural schematic diagram of the present invention;

[0024] Figure 2 is the partial enlarged view of the connection relationship between the air extraction hood, the connecting sleeve and the corrugated hose in the present invention;

[0025] Figure 3 is the partial cross-sectional view of the connection relationship between the box body, the air extraction hood and the connecting sleeve in the present invention;

[0026] Figure 4 is the cross-sectional view of the connection relationship between the connecting sleeve, the filter screen and the pressing assembly in the present invention.

[0027] In the figure, 1. Box body; 11. Air extraction port; 12. Maintenance door; 121. Air inlet hole; 2. Air extraction hood; 21. Connecting sleeve; 211. Support ring; 3. Corrugated hose; 4. Filter screen; 5. Pressing assembly; 51. Long slot; 52. Connecting ear; 521. Fixed shaft; 53. Pressing arm; 531. Shaft sleeve; 532. Rubber damping sleeve; 533. Handle rod; 6. Extraction pipe. Detailed Embodiment

[0028] The technical solutions in the embodiments will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] A transmission box body of a rice huller, referring to Figure 1 , Figure 2 , Figure 3 , the transmission box body of this rice huller includes a box body main body 1 wrapped outside a fixed belt, a swing belt, a first motor and a second motor, and one side of the box body main body 1 is the extraction pipe 6 of the rice huller. Since the extraction pipe 6 is externally connected to a high-pressure air suction device, it can extract the rice husks generated inside the rice huller; at the same time, an air extraction port 11 is opened at the upper end of the box body main body 1, and an air extraction cover 2 wrapped above the air extraction port 11 is fixed on the outer wall at the upper end of the box body main body 1 by bolts, and the air extraction cover 2 is in the shape of a frustum of a cone with a smaller upper part and a larger lower part. A connecting sleeve 21 extending in the vertical upward direction is integrally provided at the upper end of the air extraction cover 2, and a corrugated hose 3 is arranged above the air extraction cover 2. At the same time, one end of the corrugated hose 3 is connected to the connecting sleeve 21 through a hoop and the other end is communicated with the extraction pipe 6 of the rice huller. A maintenance door 12 is installed at the lower side of the box body main body 1 through a hinge, and a plurality of air inlet holes 121 are opened on the maintenance door 12.

[0030] Referring to Figure 2 , Figure 3 , Figure 4 , a filter screen 4 is further arranged in the connecting sleeve 21. The filter screen 4 can play a role in filtering the hot air flow extracted from the box body main body 1. A support ring 211 for supporting the filter screen 4 is welded on the inner wall of the circumferential side of the connecting sleeve 21, and a pressing component 5 for pressing the filter screen 4 against the support ring 211 is arranged on the connecting sleeve 21. This pressing component 5 includes a long strip opening 51, a connecting ear 52, and a pressing arm 53. Two long strip openings 51 are opened on the connecting sleeve 21 and are respectively located on the outer walls on both sides of the connecting sleeve 21. The connecting ear 52 is welded on the outer wall of the connecting sleeve 21 and is located at the lower side position of the end of the long strip opening 51. At the same time, one end of the pressing arm 53 is rotatably connected to the connecting ear 52 and the other end is used to pass through the long strip opening 51 and then abut against the upper surface of the filter screen 4. A handle rod 533 is integrally arranged on the outer wall of the pressing arm 53, and a fixed shaft 521 extending in the vertical upward direction is welded on the connecting ear 52. An axial sleeve 531 for the fixed shaft 521 to pass through is integrally arranged at one end of the pressing arm 53, and a rubber damping sleeve 532 that abuts against the outer wall of the fixed shaft 521 is bonded on the inner wall of the circumferential side of the axial sleeve 531.

[0031] Principle: When the rice huller extracts rice hulls through the extraction pipe 6, one end of the corrugated hose 3 is connected to the connecting sleeve 21 and the other end is communicated with the extraction pipe 6 of the rice huller. At this time, the corrugated hose 3 can connect the suction force in the extraction pipe 6. Subsequently, the suction force formed in the corrugated hose 3 can extract the hot air flow in the box body 1 through the air extraction hood 2 and the air extraction port 11. The box body 1 enters the outside cold air through the air inlet hole 121 on the maintenance door 12. Finally, it can realize the air-cooling and temperature reduction in the box body 1 with the help of the suction force in the extraction pipe 6, so as to achieve better heat dissipation in the box body 1 of the transmission case.

Claims

1. A transmission box body of a rice husker, comprising a box body (1) wrapped around a fixed belt, a swing belt, a first motor and a second motor, characterized in that: An air suction port (11) is provided at the upper end of the box body (1); an air suction hood (2) wrapped around the upper side of the air suction port (11) is provided on the outer wall at the upper end of the box body (1); a connecting sleeve (21) is provided at the upper end of the air suction hood (2); a corrugated hose (3) is provided on the upper side of the air suction hood (2), one end of which is connected to the connecting sleeve (21) and the other end of which is connected to the extraction pipe (6) of the rice husker; an inspection door (12) is provided on the lower side of the box body (1); a plurality of air inlet holes (121) are provided on the inspection door (12).

2. The transmission box body of a rice husker according to claim 1, characterized in that: The exhaust hood (2) is in the shape of a truncated cone that is smaller at the top and larger at the bottom.

3. The transmission box body of a rice husker according to claim 1, characterized in that: A filter screen (4) is arranged inside the connecting sleeve (21).

4. The transmission box body of a rice husker according to claim 1, characterized in that: A support ring (211) for supporting the filter screen (4) is provided on the inner wall of the peripheral side of the connecting sleeve (21), and a pressing assembly (5) for pressing the filter screen (4) onto the support ring (211) is provided on the connecting sleeve (21).

5. The transmission box body of the rice husker according to claim 4, characterized in that: The clamping assembly (5) comprises two elongated openings (51) respectively opened on the outer walls of both sides of the connecting sleeve (21), a connecting ear (52) arranged on the outer wall of the connecting sleeve (21) and located at the end of the elongated opening (51), and a clamping arm (53) having one end rotatably connected to the connecting ear (52) and the other end used to pass through the elongated opening (51) and then contact the upper surface of the filter screen (4).

6. The transmission box body of the rice husker according to claim 5, characterized in that: The connecting ear (52) is provided with a fixed shaft (521) extending in a vertically upward direction, one end of the clamping arm (53) is provided with a shaft sleeve (531) for the fixed shaft (521) to pass through, and a rubber damping sleeve (532) is provided on the inner wall of the circumference of the shaft sleeve (531) and is pressed against the outer wall of the fixed shaft (521).

7. The transmission box body of the rice husker according to claim 6, characterized in that: A handle bar (533) is provided on the outer wall of the clamping arm (53).

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